Display panel and system for displaying images utilizing the same

• US 9,960,217 B2
• Filed: 01/05/2016
• Issued: 05/01/2018
• Est. Priority Date: 04/13/2009
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Su, Tsung-Yi, Dai, Yu-Hung, Tseng, Chang-Ho
• Primary Examiner(s): Patel, Vip
• Application Number:
  US14/988,046
• Publication Number:
  US 20160126300A1
• Time in Patent Office: 847 Days
• Field of Search: 313506, 313512, 313498
• CPC Class Codes: H05B 33/06 Electrode terminals
• CPC Class Codes: H10K 50/805 Electrodes
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 59/124 Insulating layers formed between TFT elements and OLED elements
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/805 Electrodes

Abstract

A display panel is provided. The display panel includes a substrate having a pixel region and a peripheral region, a control element overlying the pixel region of the substrate, a first metal layer overlying the substrate in the peripheral region and in the pixel region, a first insulating layer formed on the first metal layer in the peripheral region, wherein the first insulating layer includes at least an opening, and the opening is disposed on the first metal layer, a second metal layer overlying the first insulating layer and electrically connected to the first metal layer, wherein a portion of the second metal layer is disposed in the opening, a second insulating layer overlying the second metal layer, and an electrode layer disposed on the second insulating layer.

Claims

1. A display panel, comprising:

a substrate having a pixel region and a peripheral region;

a control element overlying the pixel region of the substrate;

a first metal layer overlying the substrate in the peripheral region and in the pixel region;

a first insulating layer formed on the first metal layer in the peripheral region, wherein the first insulating layer comprises at least an opening, and the opening is disposed on the first metal layer;

a second metal layer overlying the first insulating layer and electrically connected to the first metal layer, wherein a portion of the second metal layer is disposed in the opening;

a second insulating layer overlying the second metal layer; and

an electrode layer disposed on the second insulating layer.

2. The display panel as claimed in claim 1, wherein the opening has a shape of a rectangle, a circle, a polygon, or other irregular shapes.

3. The display panel as claimed in claim 1, wherein the first insulating layer comprises a plurality of openings, and the plurality of openings has different shapes.

4. The display panel as claimed in claim 1, wherein the first insulating layer comprises a plurality of openings, and the plurality of openings is arranged in a line.

5. The display panel as claimed in claim 1, wherein a thickness of the second insulating layer in the pixel region is equal to a thickness of the second insulating layer in the peripheral region.

6. The display panel as claimed in claim 1, further comprising a light emitting layer disposed between the second metal layer and the electrode layer in the pixel region.

7. The display panel as claimed in claim 1, wherein an upper surface of the second metal layer comprises at least a recessed portion corresponding to the portion of the second metal layer disposed in the opening.

8. The display panel as claimed in claim 7, wherein a portion of the second insulating layer is disposed in the recessed portion.

9. The display panel as claimed in claim 7, wherein the opening is wider than the recessed portion.

10. The display panel as claimed in claim 1, wherein a top surface of the second insulating layer in the peripheral region is flat, and a bottom surface of the second insulating layer in the peripheral region is rough.

11. The display panel as claimed in claim 1, wherein the first metal layer in the pixel region is electrically connected to the control element for serving as a data line.

12. The display panel as claimed in claim 11, wherein the first insulating layer has a contact opening in the pixel region exposing the data line.

13. The display panel as claimed in claim 12, wherein the second metal layer fills into the contact opening and is electrically connected to the data line.

14. An electronic element, comprising:

a display element comprising a display panel, wherein the display panel comprises;

a substrate having a pixel region and a peripheral region;

a control element overlying the pixel region of the substrate;

a first metal layer overlying the substrate in the peripheral region and in the pixel region;

a first insulating layer formed on the first metal layer in the peripheral region, wherein the first insulating layer comprises at least an opening, and the opening is disposed on the first metal layer;

a second metal layer overlying the first insulating layer and electrically connected to the first metal layer, wherein a portion of the second metal layer is disposed in the opening;

a second insulating layer overlying the second metal layer; and

an electrode layer disposed on the second insulating layer.

15. The electronic element as claimed in claim 14, further comprising:

an input element, wherein the input element is coupled to the display element and provides a signal to the display element for displaying images.

16. The electronic element as claimed in claim 14, wherein the electronic element is a mobile phone, a digital camera, a personal digital assistant, a portable computer, a personal computer, a television, a vehicle display, or a portable DVD.

17. The electronic element as claimed in claim 14, wherein the opening has a shape of a rectangle, a circle, a polygon, or other irregular shapes.

18. The electronic element as claimed in claim 14, wherein the first insulating layer comprises a plurality of openings, and the plurality of openings has different shapes.

19. The electronic element as claimed in claim 14, wherein the first insulating layer comprises a plurality of openings, and the plurality of openings is arranged in a line.

20. The electronic element as claimed in claim 14, wherein an upper surface of the second metal layer comprises at least a recessed portion corresponding to the portion of the second metal layer disposed in the opening, and wherein a portion of the second insulating layer is disposed in the recessed portion.